Paragraph: (Science-textbook/science-g3-22.txt)
Sent 1: Plants also detect the daily cycle of light and darkness.
Sent 2: Do you know how plants respond to these changes?
Sent 3: Some plants open their leaves during the day.
Sent 4: It is during these hours the plant can collect sunlight.
Sent 5: At night, the plant closes its leaves to prevent water loss.
Sent 6: Many plants respond to the change in the length of the day.
Sent 7: As days grow shorter, some plants respond by going dormant.
Sent 8: Dormant is when a plant suspends its growth.
Sent 9: It does this in order to survive.
Sent 10: Shorter days signal the coming of winter.
Sent 11: Winter in most areas means extreme cold.
Sent 12: It is also very dry in the winter months.
Sent 13: As winter approaches, some plants respond by their leaves changing color.
Sent 14: After the change in color, they fall off.
Sent 15: This dormancy period helps trees.
Sent 16: It allows them to survive the cold and dry winter.
Sent 17: Plants only want to grow when conditions are right.

Question: What do some plants do when days grow shorter? (false/0)

Some plants store as much water as possible
Some plants go dormant
The leaves change color and fall off
Go dormant
Some plants close their leaves so they don't freeze off

Question: Does a plant suspend its growth when days get longer, or when days get shorter? (true/1)

When the length of sunlight during the day decreases, nothing happens
When days get shorter
When sunlight during the day increases
When days get longer

Question: What is it about winter that makes it difficult for plants to survive? (false/2)

Winter in most areas means extremely cold and dry conditions
In most areas, winter kills plants and trees
In winter the days are shorter, there is extreme cold and it is also very dry
Winters can be very cold and dry
Winters can be very cold and rainy

Question: What happens to plants when winter approaches? (false/3)

As winter approaches plants leaves fall off and they enter a dormancy period which allows them to survive cold dry winters
Some plants go dormant
Some plants' leaves change color then fall off
Plants close their leaves to prevent water loss
Plants grow as fast as possible to survive the winter

Question: What happens with growth rate in some plants when days grow shorter? (true/4)

A plant may grow quickly before winter sets in
In some plants, the growth rate will slow or stop
It will go dormant
The plants suspend the growth rate
The growth rate remains the same as when days are longer

Question: Why do plants close their leaves at night? (true/5)

So they don't die in the nighttime chill
Because the sun isn't out
To prevent water loss
So they don't dry out

Question: Do some plants' leaves fall off in the winter months? (true/6)

No, they fall off in the autumn only
All plants lose their leaves in the winter
Yes
Some plants and trees lose their leaves in the winter months

Question: What are two ways we might suspect a tree has become dormant? (true/7)

Its growth has stopped and the leaves have fallen off
Tree leaves may have changed color, or the leaves may have fallen off
Its leaves have changed color and it dies
It grows faster and bears fruit
Leaves have changed color and suspend its growth

Question: Why do some plants go dormant in winter? (true/8)

So that it can survive winter
It allows them to survive the cold and dry winter
Because it is dying
To survive the very wet winter conditions
To survive extremely cold and dry conditions

Question: Why might a plant open its leaves during the day? (false/9)

So that it can gather more light
So they can change color
To catch raindrops
To collect sunlight

Question: How do plants respond to changes in light conditions during the day and night? (true/10)

Plants may close their leaves during the day to prevent burning and open them at night to collect moisture
They collect sunlight on open leaves in the day and close them at night to prevent water loss
Plants open their leaves during the day to collect sunlight and close them at night to prevent water loss
Open leaves in the day and close them at night
Their leaves change color during the day and turn green again at night

Question: What happens to some plants' leaves after they change color as winter approaches? (true/11)

The leaves may fall off to help it survive a cold, dry winter
The leaves turn green again
They start to grow again
They fall off

Question: Why do plants open their leaves during the day? (true/12)

To collect more sunlight
So they can dry themselves
They detect daylight and open their leaves in order to collect sunlight
To collect water
So they can get as much sunlight as possible

Question: What are the right conditions for plants to grow in? (true/13)

Somewhat cold and dry
Long days, enough moisture and warmer temperature
There needs to be sunlight and water
Warm and moist conditions
Very dry and hot conditions

Question: When and why do plants go dormant? (false/14)

As winter approaches, to survive extreme cold and dry winters
When the days get shorter, so the cold and dry winter doesn't kill them
They do so as the days get shorter, in order to survive
During the summer, to prevent extreme water loss
As summer approaches, to save energy for new leaves

Question: What are two ways some plants might respond to daily cycles? (false/15)

A plant may open its leaves to collect sunlight during the day and close them at night to prevent water loss
A plant may open its leaves at night to collect moonlight and close them during the day to prevent loss of moisture
A plant may change the color of its leaves and stop its own growth
By opening their leaves during the day and closing them at night
Some plants open their leaves during the day. At night, the plant closes its leaves

Question: How do plants respond as the length of the day changes? (true/16)

Question: Is suspended growth required for plants to survive? (true/17)

Some plants go dormant to survive
Yes, all plants and trees suspend their growth
Yes
It is for some plants
Yes, if they are to survive autumn

Question: What two things happen to a plants' leaves as winter approaches? (true/18)

They may change color and fall off
A plant may grow more leaves to prepare for winter
The leaves change color and then fall off the plant
A plants' leaves may fall off after their color changes
A plants' leaves turn purple and dry up

Question: What happens to a plant when it goes dormant in order to survive? (false/19)

It stops growing
Its leaves grow faster and but the plant stops growing taller
The plant suspends growth
Its leaves may change color and fall off, and its growth may stop
The plant will die

Question: Why is dormancy beneficial for plants? (true/20)

Dormancy lets plants grow when the weather is cold and dry
Dormancy allows plants to collect more sunlight
It allows them to only grow when conditions are right
It allows them to survive the cold and dry winter
It allows them to survive winter

Last updated: Mon Apr 16 04:55:33 EDT 2018
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